www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

USEUROPEAFRICAASIA 中文雙語Fran?ais
China
Home / China / Innovation

China developing atomic clock for Beidou system

Xinhua | Updated: 2017-07-29 07:20

BEIJING -- China is developing a new generation of atomic clock, which it aims to use on the Beidou Navigation Satellite System, according to China Aerospace Science and Technology Corporation (CASTC) Friday.

The microwave mercury ion clock is currently one of the most accurate tools for measuring time by tracking atomic movement in the microwave range, said Wang Nuanrang, project leader at the CASTC.

It can provide extremely precise measurements of time that can be used in the fields of deep space exploration and satellite navigation.

Wang said that scientists will establish an experimental mercury ion clock system to conduct scientific tests within the next four years, promoting the development of the Beidou system.

Since 2012, China's self-developed Beidou system has provided navigation, time and text messaging services in the Asia Pacific region.

By 2020, Beidou satellites will form a complete global satellite navigation system, according to China Satellite Navigation System Committee.

Editor's picks
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 天天黄色片 | 特级毛片a级毛免费播放 | 一级爱做片免费观看久久 | 欧美日韩午夜视频 | 久久中文字幕乱码免费 | 免费观看亚洲视频 | 女人张开腿让男人桶个爽 | 欧美日韩在线视频观看 | 国产欧美日韩中文久久 | 国产人成午夜免费噼啪视频 | 美女又黄又免费 | 久久精品在线观看 | 欧美在线a | 很黄很色的免费视频 | 国产欧美日韩在线一区二区不卡 | 国产亚洲精品久久久久久午夜 | 欧美大尺度xxxxx视频 | 亚洲天堂美女视频 | 亚洲第一免费 | 久草手机视频在线观看 | 久久久视 | 全部免费毛片在线 | 国产精品国色综合久久 | 目韩一区二区三区系列片丶 | 欧美性色黄大片在线观看 | 国产亚洲人成在线影院 | 欧美性猛交xxx免费看人妖 | 91热久久免费频精品黑人99 | 日韩午夜在线视频不卡片 | 亚洲天堂久久久 | 一级毛片免费不卡 | 国产乱理片在线观看夜 | 日本三级2021最新理论在线观看 | 美女视频免费黄色 | 国产成人精品无缓存在线播放 | 国产精品反差婊在线观看 | 久久精品三级视频 | 在线观看一区 | 国产成人免费手机在线观看视频 | 国产精品久久亚洲一区二区 | 欧美aaaaaaaaaa|